Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Neysa McMein (American, 1888-1949)

Dow Chemical Company (American, 19th/20th Century)

Willy Pogany (Hungarian, 1882 – 1955)

Hercules Incorporated (American, 20th Century)

Anonymous

Dow Chemical Company (American, 19th/20th Century)

Charles Frederick Neagle (American, 1857-1944)

Anonymous

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)